Asp. NET page Caching 4 Common ways _ Practical tips

This article has shared 4 kinds of common asp.net page caching way for everybody's reference, the concrete content is as follows

1, distributed cache memcached, tutorial Download

2, Memory cache, this occupies server resources

#region Memory Cache public class MemoryCache {#region write///<summary>///write data cache to memory///</summary>// /<remarks>tommyhu2011-7-28 10:25 Create </remarks>///<param name= "CacheKey" > Cache identification Keyword </param>/// <param name= "Cacheresult" > Data to be stored </param>///<param name= "cachetime" > Unit sec </param> Public static void Inertmemorycache (String CacheKey, Object cacheresult, int cachetime) {if (Cacheresult!= null) {Sys Tem. Web.HttpRuntime.Cache.Insert (CacheKey, Cacheresult, NULL, System.Web.Caching.Cache.NoAbsoluteExpiration, 
 Timespan.fromseconds (Cachetime)); #endregion #region Read///<summary>///read memory cache information based on cache identity///</summary>///<remarks>tomm yhu2011-7-28 10:25 Create </remarks>///<param name= "CacheKey" > Cache identity Keywords </param>///<returns> Memory cache data </returns> public static object Readmemorycache (String cachekey) {Object obj = system.web.httpruntime.c Ache. Get (cAchekey); 
 if (obj!= null) {return obj; 
 return null;  } #endregion} #endregion

3, XML cache , this is most common

 #region XML Cache public static class Xmlcache {private static string m_cachefoldername = null; #region get/Generate Cache file method (no cmdparams)///<summary>///get/Generate Cache file Method (DataTable)///</summary>///<param Name= SQL > Convert SQL to MD5 string </param>///<param name= "Cachefilepath" > The relative path of the XML file (the root directory has been preset) </param >///<param name= "CacheTime" > Cache time </param>///<param name= "dataused" > used database link string </param >///<returns></returns> public static DataTable cachefilebydatatable (String SQL, String Cachefilepath 
 , int CacheTime) {Sqlhelper.sqlhelper querysql = new Sqlhelper.sqlhelper (); if (Cachefilepath!= string. 
 Empty && Cachefilepath.startswith ("/")) {Cachefilepath = Cachefilepath.remove (0, 1); String SqlMd5 = sql;//used to convert SQL to MD5 string StrSqlByMd5 = System.Web.Security.FormsAuthentication.HashPasswordF 
 
 Orstoringinconfigfile (SqlMd5, "MD5");//generated MD5 filename string mycachefilepath = "";if (CacheTime >= 10000)//If more than 20 days the system defaults to persistent {Mycachefilepath = XMLCACHE.CACHEFOLDERNAMEP + cachefilepath;//for storing XML text Relative path} else {Mycachefilepath = xmlcache.cachefoldername + cachefilepath;//for storing XML file relative path} int Mycache Time = cachetime;//Cache times (sub) DataTable dt = new DataTable ()//DataTable DataTable with Data records Cachedt = new DataTable (); /Get a DataTable of cached data Records//attempt to get cached data records try {Cachedt = Datatablecache.getdtcache (Mycachetime, Mycachefilepath, STRs 
 QLBYMD5); 
 catch {Cachedt = null; 
 The IF (Cachedt!= null)//gets to the cached XML file {dt = Cachedt; 
  else//did not get the cached XML file {//Build DataTable (Query.processsql method if queried in query)//dt = Query.processsql (SqlMd5, dataused); 
 
  DT = QUERYSQL.RETDT (SQL); Save the DataTable as an XML file try {if (dt). DataSet!= null) {dt. 
  DataSet.Tables.Remove (DT); 
  } datatablecache.setdtcache (Mycachefilepath, StrSqlByMd5, DT); The catch (Exception ex) {//log.getcomlogger (). Error ("Save DataTable as XMLFile error: "+ ex." 
  message); 
 } return DT; ///<summary>///get/Generate Cache file Method (DataSet) Add by WJ 08-10-23///</summary>///<param name= "SQL" & gt; to convert SQL to MD5 string </param>///<param name= "Cachefilepath" > Store the relative path of the XML file (the root has been preset) </param>///< param name= "CacheTime" > Cache time </param>///<param name= "dbname" > used database link string </param>///< 
 returns></returns> public static DataSet Cachefilebydataset (String SQL, string cachefilepath, int CacheTime) 
 {Sqlhelper.sqlhelper querysql = new Sqlhelper.sqlhelper (); if (Cachefilepath!= string. 
 Empty && Cachefilepath.startswith ("/")) {Cachefilepath = Cachefilepath.remove (0, 1); String SqlMd5 = sql;//used to convert SQL to MD5 string StrSqlByMd5 = System.Web.Security.FormsAuthentication.HashPasswordF Orstoringinconfigfile (SqlMd5, "MD5")//generated MD5 filename string mycachefilepath = Xmlcache.cachefoldername + cachefilepath;// relative path int mycachetime = Cach for storing XML filesetime;//Cache Time (sub) DataSet ds = new DataSet ()///DataSet with data record cacheds = new DataSet ();//Get Cached data record dataset 
 Attempt to get cached data record try {cacheds = Datatablecache.getdscache (Mycachetime, Mycachefilepath, STRSQLBYMD5); 
 catch {cacheds = null; 
 } if (cacheds!= null)//gets to the cached XML file {ds = Cacheds; 
  else//failed to get cached XML file {//Generate DataSet//ds = Query.processmultisql (SqlMd5, dbname); 
 
  ds = Querysql.retds (SQL); 
  Save the dataset as an XML file try {Datatablecache.setdscache (Mycachefilepath, StrSqlByMd5, DS); 
 The catch {}} return DS; #endregion #region Get/Generate Cache file method (with Cmdparams)///<summary>///get/Generate Cache file Method (DataTable)///</summary >///<param name= "SQL" > is used to convert SQL to MD5 string </param>///<param name= "Cachefilepath" > Store the relative path of the XML file ( root directory preset) </param>///<param name= "CacheTime" > Cache time </param>///<param name= "dataused" > Link string for the database used </param>///<param name= "Cmdparams"To provide the parameter list </param>///<returns></returns> public static DataTable used in the SqlCommand command as an array 
 Cachefilebydatatable (String SQL, string cachefilepath, int CacheTime, string dbconstr, params sqlparameter[] cmdparams) 
 {Sqlhelper.sqlhelper querysql = new Sqlhelper.sqlhelper (); if (Cachefilepath!= string. 
 Empty && Cachefilepath.startswith ("/")) {Cachefilepath = Cachefilepath.remove (0, 1); 
 The string SqlMd5 = sql;//is used to convert SQL to MD5 string sqlmd5params = SQL; if (cmdparams!= null) {for (int i = 0; i < cmdparams.length; i++) {if (cmdparams[i). Value!= null) Sqlmd5params + = Cmdparams[i]. 
  Value.tostring (); } String StrSqlByMd5 = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile (Sqlmd5params, "M 
 
 D5 ");//generated MD5 filename string mycachefilepath =" "; if (CacheTime >= 10000)//If more than 20 days the system defaults to persistent {Mycachefilepath = XMLCACHE.CACHEFOLDERNAMEP + cachefilepath;//for storing XML text The relative path of the piece} else {MycachefiLepath = xmlcache.cachefoldername + cachefilepath;//The relative path for storing xml files int mycachetime = cachetime;//cache time (minutes) Datat Able dt = new DataTable ()//DataTable DataTable containing data records Cachedt = new DataTable ();//Get a DataTable of cached data Records//attempt to get cached data 
 
 Record Cachedt = Datatablecache.getdtcache (Mycachetime, Mycachefilepath, STRSQLBYMD5); 
 if (Cachedt!= null)//gets to the cached XML file {dt = Cachedt; 
  else//did not get the cached XML file {//Build DataTable (Query.processsql method if queried in query)//dt = Query.processsql (SqlMd5, dataused); 
  DT = QUERYSQL.RETDT (SQLMD5); 
  DataTable dt1 = new DataTable (); if (dt!= null) {dt1 = dt. 
  Copy (); 
 ///Save DataTable as XML file Datatablecache.setdtcache (Mycachefilepath, StrSqlByMd5, DT1); 
 } return DT; ///<summary>///get/Generate Cache file Method (DataSet) Add by WJF///</summary>///<param name= "SQL" > is used to SQL translates to MD5 string </param>///<param name= "Cachefilepath" > Store the relative path of the XML file (the root has been preset) </param>///<param Name= "CacheTime" > Cache time</param>///<param name= "dbname" > used database link string </param>///<param name= "Cmdparams" > Provides the parameter list </param>///<returns></returns> public static DataSet that is used in the SqlCommand command in the form of an array 
 Cachefilebydataset (String SQL, string cachefilepath, int CacheTime, string dbconstr, params sqlparameter[] cmdparams) { 
 Sqlhelper.sqlhelper querysql = new Sqlhelper.sqlhelper (); 
 String SqlMd5 = sql;//used to convert SQL to MD5 string sqlmd5params = SQL; if (cmdparams!= null) {for (int i = 0; i < cmdparams.length; i++) {if (cmdparams[i). Value!= null) Sqlmd5params + = Cmdparams[i]. 
  Value.tostring (); } String StrSqlByMd5 = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile (Sqlmd5params, "M D5 ");//generated MD5 filename string mycachefilepath = xmlcache.cachefoldername + cachefilepath;//the relative path int for storing XML files Mycachetim E = cachetime;//Cache Time (sub) DataSet ds = new DataSet ()//dataset DataSet with data record cacheds = new DataSet ()//Fetch cached dataRecorded dataset//attempt to get cached data records cacheds = Datatablecache.getdscache (Mycachetime, Mycachefilepath, STRSQLBYMD5); 
 if (cacheds!= null)//gets to the cached XML file {ds = Cacheds; 
  else//failed to get cached XML file {//Generate DataSet//ds = Query.processmultisql (SqlMd5, dbname); 
  ds = Querysql.retds (SQLMD5); 
  DataSet ds1 = new DataSet (); if (ds!= null) {DS1 = ds. 
  Copy (); 
 ///Save DataSet as XML file Datatablecache.setdscache (Mycachefilepath, StrSqlByMd5, DS1); 
 } return DS; #endregion #region non-persistent///<summary>///persisted///</summary> public static string Cachefold Ername {get {if (m_cachefoldername = = null)//if path {M_cachefoldername = System.configurati is not defined in Global.asax On. 
  ConfigurationManager.AppSettings.GetValues ("Cachepathroot") [0];  
  if (M_cachefoldername = null)//If the path is not defined in Web.config {return "/cachedata/" + DateTime.Now.ToString ("yyyyMMdd") + "/"; else {return m_cachefoldername + DateTime.Now.ToString ("yyyyMMdd") +"/"; 
  } else {return m_cachefoldername + DateTime.Now.ToString ("yyyyMMdd") + "/"; 
 } set {m_cachefoldername = value; } #endregion #region persisted (for example, data that holds Mapbar cache or needs to be updated for more than 3 months)///<summary>///persist (for example, storing Mapbar cached data or requiring 3 months to ///</summary> public static string Cachefoldernamep {get {if (M_cachefoldername = null)//AS The path {m_cachefoldername = System.Configuration.ConfigurationManager.AppSettings.GetValues ("global.asax") is not defined in the fruit 
  Cachepathroot ") [0]; 
  if (M_cachefoldername = null)//If the path is not defined in Web.config {return "/cachedata/"; 
  else {return m_cachefoldername; 
  } else {return m_cachefoldername; 
 } set {m_cachefoldername = value; 
 } #endregion} #endregion

4, DataTable Cache

The above is the entire content of this article, I hope to help you learn, but also hope that we support the cloud habitat community.